All I had to do was:
Type in the words I wanted,
Set the font and background colors,
Upload my image,
Set the size attributes,
Keep Calm and ______ On!
The only image editing I did in Gimp was to change the background colors of some of my silhouettes to make each printable a bit different.
You can click on these images, and then right click and save them to your computer, then simply print them out.
Or, you can make your own!